OK GEAR GURU"S HELP ME OUT

[spazbot]

so im thinking with the 4.5s i should be doing less revs on the highway but my crawl ratio will go down....

crawl ratio isnt everything, it the 90's to 100's you are getting pretty damn low

[mud4b]

yeah i know that....im just trying to get the best compromise i can......


greg ive already got the vit engine in it......

[redzook]

so im thinking with the 4.5s i should be doing less revs on the highway but my crawl ratio will go down....

u will have a crawl ratio of 100.247 with 33's
so at 1 mph u will be doin 1,021 RPM wich is low

overkils buggy has a crawl of 114.059 with 37's
at 1 mph its doin 1,036

so bascially stuff all difference an if you have seen overkill's buggy crawl u will know it is LOW

[mud4b]

kewl....so ill stick with the 4.5s

[greg]

Is all this stuff still going under the swb sierra with the 2L vitara engine?

[mud4b]

are you talking about the td that i done....

no its going under my coily if i dont sell it............

[greg]

are you talking about the td that i done....

no its going under my coily if i dont sell it............

Sorry - now i am up to date... yeah i was just going to say that if you were putting it into something with a lwb you could run twin transfers with the second one backwards (i.e. Fat City Bronco from Top Truck last year) and then you can increase your onroad gearing, and decrease your offroad gearing still... pretty groovy stuff I'm sure it would take some work though.

[mud4b]

i am moving the rear diff back to the end of the chassis.....i thought about twin cases a while ago but no idea how to hook em up together....

[1MadEngineer]

originally i ran 4.88/32's /1.3 & 5spd
just sweet down the h'way 130k's easy

went 4.55/35's /1.6& ser1
could still do 110 even turnin heavy ass simexET's
or 90 on 35" boggers

[OVERKILL ENG]

Mine at the moment is
3.9/6.1/5.1
=116:1

Mat and mine will soon be
3.9/2.3/7.5/5.29
=355.88
What will be possible
3.9/7.5/7.5/5.29
=1160:1

ps That is without running dual cases.

[GRIMACE]

Dont you reackon thats abit toooo low

That would be some bling bling crawl ability, 6000+ revs at below 1mph

[mud4b]

kewl..........very interresting........





thanks for that madeng.........

[mud4b]

ok people....all the same gear but with 4.1 diff ratios.....




thanks

[greg]

ok people....all the same gear but with 4.1 diff ratios.....




thanks

You're not even trying are you?

Lucky grimbo doesn't increase his Pirate 4x4 Search Nazi role to cracking down on people who can't calculate gear ratios

1st x X-fer x Diffs

3.652 x 6.1 x 4.1 = 91.33 Crawl Ratio

Dunno what engine revs will be like at 100kms though.

cheers

[mud4b]

thanks.........the revs at 100 would be less than before........

i never knew the g-box ratio......

[redzook]

Mine at the moment is
3.9/6.1/5.1
=116:1

Mat and mine will soon be
3.9/2.3/7.5/5.29
=355.88
What will be possible
3.9/7.5/7.5/5.29
=1160:1

ps That is without running dual cases.

how do u get it that low?
splitter (like trail tough?)

[Beastmavster]

A little gear calculator chimpboy whipped up and I did a few things with.

Any tyres, any diff ratios, dual transfer cases or single - key em in and see what you get.

Send me a pm and i can send it to you at your proper email address - can't post xls files here. if someone tells me it's ok I can rename it jpg or something and post it in this thread but I'll take no responsiblity for what happens after that.

It's currently set up for 1kph per 1000rpm in top - Vitara/Sierra Dual transfer, on Calmini R&P's, with Vit 4:1 rockhopper and Sierra 8:1 rockhopper (dunno the exact figures on the 8:1 rockhopper so I sorta fudged them when i was bored at work).

Enjoy...

Don't forget to say thankyou to the Chimp.....

If people wanna send me in their gearbox/diff data we can always add more of them in.

[mud4b]

sounds like a good thing.....but ive got it sorted.....

thanks

[M&M Custom Engineerin]

Mine at the moment is
3.9/6.1/5.1
=116:1

Mat and mine will soon be
3.9/2.3/7.5/5.29
=355.88
What will be possible
3.9/7.5/7.5/5.29
=1160:1

ps That is without running dual cases.

how do u get it that low?
splitter (like trail tough?)

Just wait and see......me and matt should have ours in for xrcc in January.

Matt should have his 46's on for that too

[greg]

Matt should have his 46's on for that too

46 what's mick? Fill us in

[grimbo]

something like this perhaps?

[greg]

something like this perhaps?

Yeah i figure it's either going to be that, or something ex-military-ish isn't it

[M&M Custom Engineerin]

He is going to get some 46 claws